Methods, compositions and uses relating thereto

Patent metadata

Field	Value
Publication number	US-11000461-B2
Application number	US-201716095598-A
Country	US
Kind code	B2
Filing date	Apr 21, 2017
Priority date	Apr 22, 2016
Publication date	May 11, 2021
Grant date	May 11, 2021

Abstract

A method of combatting colour loss from a dyed material, the method comprising contacting the material with a composition comprising an alpha-substituted aldehyde.

First claim

The invention claimed is:

1. A method of inhibiting or preventing solvent-mediated leaching of dye from a dyed material, the method comprising contacting the material with a composition comprising an alpha-substituted aldehyde of formula (II):

wherein X is selected from the group consisting of OH, O(CH 2 ) n A, Cl, Br, and F wherein n is from 1-6; A is H or OH; and R is an unsubstituted alkyl or alkenyl group having 1-30 carbon atoms.

2. The method according to claim 1 wherein the material is a keratinous material.

3. The method according to claim 2 wherein the material is human hair or animal hair.

4. The method according to claim 3 wherein the material is growing human hair or animal hair.

5. The method or composition according to claim 1 wherein the composition comprising the alpha-substituted aldehyde is selected from the group consisting of a shampoo composition, a conditioning composition, a hair styling composition, a hair permanent waving composition, a hair relaxing composition, a hair permanent straightening composition and a hair colouring composition.

6. The method according to claim 1 wherein the composition comprising the alpha-substituted aldehyde further comprises 1 to 30 wt % of one or more surfactants.

7. The method according to claim 1 wherein the alpha-substituted aldehyde is an alpha-hydroxy aldehyde.

8. The method according to claim 1 wherein the alpha-substituted aldehyde is selected from the group consisting of 2-hydroxypropanal, 2-hydroxyhexanal, 2-hydroxyoctanal, and 2-(2-hydroxyethoxy)acetaldehyde.

9. The method according to claim 1 wherein the alpha-substituted aldehyde is selected from the group consisting of 2-hydroxypropanal, 2-hydroxyhexanal, 2-hydroxyoctanal, and 2-(2-hydroxyethoxy)acetaldehyde.

10. The method according to claim 1 wherein said composition comprises a first alpha-substituted aldehyde of formula II having less than 10 carbon atoms and a second alpha-substituted aldehyde of formula II having 10 or more carbon atoms.

11. The method according to claim 10 wherein the second alpha-substituted aldehyde is selected from the group consisting of 2-hydroxydecanal, 2-hydroxydodecanal and 2-hydroxytetradecanal.

12. The method according to claim 10 wherein the first alpha-substituted aldehyde is selected from the group consisting of 2-hydroxypropanal, 2-hydroxyhexanal, 2-hydroxyoctanal, and 2-(2-hydroxyethoxy)acetaldehyde and the second alpha-substituted aldehyde is selected from the group consisting of 2-hydroxydecanal, 2-hydroxydodecanal and 2-hydroxytetradecanal.

13. The method according to claim 1 wherein the composition comprising the alpha-substituted aldehyde further comprises an amine salt of a carboxylic acid.

14. The method according to claim 1 wherein the composition comprising the alpha-substituted aldehyde further comprises a polycarboxylic acid derived chelating agent.

15. The method according to claim 1 wherein the composition comprising the alpha-substituted aldehyde further comprises a succinimidyl ester.

16. The method according to claim 1 wherein the composition comprising the alpha-substituted aldehyde further comprises a crosslinking agent comprising two or more maleic acid derived reactive moieties and a linker having two or more amino groups.

17. The method according to claim 3 which reduces colour loss from said hair by at least 20% after three washes compared with hair dyed by an equivalent method excluding the alpha-substituted aldehyde.

18. The method according to claim 1 wherein the dyed material is a textile material.

19. The method according to claim 18 which inhibits or prevents solvent-mediated leaching of dye resulting from washing a dyed textile material in a laundry washing process.

20. The method of claim 1 , wherein R is an unsubstituted alkyl group having 4-16 carbon atoms.

21. The method according to claim 4 wherein the material is growing human hair.

Assignees

• Innospec Ltd

Inventors

• Dixon Nicholas John
• Giles Matthew Robert
• Griffiths Kimberley Elizabeth
• Gough Tony
• Mcrobbie Ian Malcolm

Classifications

• D06P5/04

  with organic compounds · CPC title

• A61Q5/00

  Preparations for care of the hair · CPC title

• A61K8/33 Primary

  containing oxygen · CPC title

• A61K8/342 Primary

  Alcohols having more than seven atoms in an unbroken chain · CPC title

• C07C47/19

  containing hydroxy groups (sugars C07H) · CPC title